NavigationBarTheme NavigationBarTheme # bgcolor # bgcolor: ColorValue | None = None elevation # elevation: Number | None = None height # height: Number | None = None indicator_color # indicator_color: ColorValue | None = None indicator_shape # indicator_shape: OutlinedBorder | None = None label_behavior # label_behavior: NavigationBarLabelBehavior | None = None label_padding # label_padding: PaddingValue | None = None label_text_style # label_text_style: ControlStateValue[TextStyle] | None = None overlay_color # overlay_color: ControlStateValue[ColorValue] | None = None shadow_color # shadow_color: ColorValue | None = None surface_tint_color # surface_tint_color: ColorValue | None = None